Rollup merge of #23056 - awlnx:master, r=nrc

[rust.git] / src / libcore / lib.rs

diff --git a/src/libcore/lib.rs b/src/libcore/lib.rs
index ea39ab3da5e7815b5232821ba101cee6d11381f4..eb13de06bac99558946238d717febc1787cc23dc 100644 (file)
--- a/src/libcore/lib.rs
+++ b/src/libcore/lib.rs
@@ -71,6 +71,7 @@
 #![feature(unboxed_closures)]
 #![feature(rustc_attrs)]
 #![feature(optin_builtin_traits)]
+#![feature(concat_idents)]
 
 #[macro_use]
 mod macros;